Refer to the standards for passive EMC of instruments. They are specifying, how to feed conducted RF to a power cable. Generally, they are using a RF generator, a power amplifier and a coupler. For some industry standard products, see RF Amplifiers - Linear, broadband and VSWR tolerant
Thanks a lot for the replies :grin:, creating one like this is very useful for designing appropriate filters for protecting the instrument from damage as nowadays power lines are heavily contaminated with all sorts of noises like voltage fluctuations, emi, surges, spikes etc etc.